Veblen effect

Abnormal marketbehavior where consumers purchase the higher-priced goods whereas similar low-priced (but not identical) substitutes are available. It is caused either by the belief that higher price means higher quality, or by the desire for conspicuous consumption (to be seen as buying an expensive, prestige item). Named after its discoverer, the US social-critic Thorstein Bunde Veblen (1857-1929).